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公开(公告)号：EP2242744B1
公开(公告)日：2014-06-25
申请号：EP09700937.7
申请日：2009-01-08
Applicant: BASF SE
Inventor： BESTE, York Alexander , STEGMANN, Veit , MAASE, Matthias
IPC: C07D233/54 , C07D233/56 , C07D233/58
CPC classification number: C07D233/54 , C07D233/56 , C07D233/58
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公开(公告)号：EP2118044A1
公开(公告)日：2009-11-18
申请号：EP07726909.0
申请日：2007-03-14
Applicant: BASF SE
Inventor： PINKOS, Rolf , LORENZ, Rudolf Erich , BESTE, York Alexander
CPC classification number: C07C29/80 , C07C31/207
Abstract: The object of the present invention is a method for the purifying distillation of raw, aqueous 1,4-butanediol (1), in which 1,4-butanediol (5) freed of components boiling at a lower point than 1,4-butanediol and water is conducted through three distillation columns (III, IV, V), components boiling at a higher point than 1,4-butanediol are drawn from the bottom of the first column and conducted to the third (7), 1,4-butanediol is conducted from the top of the first column (6) into the second, the bottom product of the second column (9) is conducted into the third, the top product of the third column (11) is returned at least partially to the first column, characterized in that the pure 1,4-butanediol is removed from the side outlet of the second column.
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Patent Agency Ranking
公开(公告)号：EP2121549A1
公开(公告)日：2009-11-25
申请号：EP07726908.2
申请日：2007-03-14
Applicant: BASF SE
Inventor： PINKOS, Rolf , LORENZ, Rudolf Erich , BESTE, York Alexander
CPC classification number: C07C29/42 , C07C29/172 , Y02P20/125 , C07C33/046 , C07C31/207
Abstract: The object of the present invention is an integrated method for the continuous production of 1,4-butanediol, comprising the following steps: (I) reacting formaldehyde with acetylene in the presence of a catalyst comprising copper at a pH value between 5 and 8, and at a molar ratio of formaldehyde to acetylene of a maximum of 2:1, (II) intermediate buffering of the resulting aqueous mixture comprising butanediol for 0.1 to 100 h, (III) hydrating the mixture obtained after intermediate buffering, and (IV) distilling the hydrogenation product obtained in step II for yielding 1,4-butanediol.
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公开(公告)号：EP2121549B1
公开(公告)日：2017-06-07
申请号：EP07726908.2
申请日：2007-03-14
Applicant: BASF SE
Inventor： PINKOS, Rolf , LORENZ, Rudolf Erich , BESTE, York Alexander
CPC classification number: C07C29/42 , C07C29/172 , Y02P20/125 , C07C33/046 , C07C31/207
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公开(公告)号：EP2118044B1
公开(公告)日：2013-05-15
申请号：EP07726909.0
申请日：2007-03-14
Applicant: BASF SE
Inventor： PINKOS, Rolf , LORENZ, Rudolf Erich , BESTE, York Alexander
CPC classification number: C07C29/80 , C07C31/207
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公开(公告)号：EP2242744A1
公开(公告)日：2010-10-27
申请号：EP09700937.7
申请日：2009-01-08
Applicant: BASF SE
Inventor： BESTE, York Alexander , STEGMANN, Veit , MAASE, Matthias
IPC: C07D233/54 , C07D233/56 , C07D233/58
CPC classification number: C07D233/54 , C07D233/56 , C07D233/58
Abstract: The present invention relates to a process for the work-up of acidic or basic ionic liquids (IL) of the general formula (I), [A]+(1/n)*[Y]− (I) where [A]+ is a quaternary ammonium cation and (1/n)*[Y]n− is one anion equivalent of an n-fold charged anion, which comprises adding a conjugate acid-base pair selected from among compounds of the formula (II), [A]+[X]− (II) where [A]+ has the meaning given for the ionic liquid and [X]− is a conjugate base to the ionic liquid (IL).
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7.发明授权
公开(公告)号：EP1817090B1
公开(公告)日：2008-04-09
申请号：EP05813780.3
申请日：2005-11-21
Applicant: BASF SE
Inventor： BESTE, York Alexander , EGGERSMANN, Markus , SCHOENMAKERS, Hartmut
CPC classification number: B01D3/36 , B01D3/40 , Y02P20/127
Abstract: The invention relates to a method for chemically reacting and separating a mixture in a column, during which a reactive distillation is at least partially superimposed by an extractive distillation, and an ionic liquid serving as an entrainer is led into the column.
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